I have long admired Australian multiculturalism. It has been of great benefit to the nation as it leavened the hard native culture and given us a broader horizon.
Multiculturalism took root in our institutions as well, and we have always been able to keep sectarian and cultural conflicts at bay as security services were sufficiently sensitive and integrated with manifold cultural communities.
An outstanding example of this was the War on Terror, in which the local Muslim community cooperated with all levels of policing to prevent attacks.